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Aviation Abbreviations - ICAO, BCAS, DGCA, IATA, FAA, AERA, AAI, AI, ACI, ATC, ATM, ATS, IAF, IATA | Edvnce
SS AIR Aviation Ground Services & Logistics - #Boeing #Abbreviations A ABV Above AC Alternating Current or Aircraft ACARS Aircraft Communications Addressing and Reporting System ACE Actuator Control Electronics ACIPS Airfoil and
![navigation - What are the differences between an OBS, a CDI, a Heading indicator, and an HSI? - Aviation Stack Exchange navigation - What are the differences between an OBS, a CDI, a Heading indicator, and an HSI? - Aviation Stack Exchange](https://i.stack.imgur.com/oBARQ.jpg)
navigation - What are the differences between an OBS, a CDI, a Heading indicator, and an HSI? - Aviation Stack Exchange
![navigation - What are the differences between an OBS, a CDI, a Heading indicator, and an HSI? - Aviation Stack Exchange navigation - What are the differences between an OBS, a CDI, a Heading indicator, and an HSI? - Aviation Stack Exchange](https://i.stack.imgur.com/77Gtg.jpg)